baber/WOPTO huggingface dataset:
Patent GB-1414595-A (GB)
Title: Cermaic substrates for thin-film circuits
IPC: C04B35/111
Filed: 1974-01-28
Abstract: 1414595 Moulding ceramic substrates SIEMENS AG 28 Jan 1974 [29 March 1973] 3864/74 Heading B5A [Also in Division C1] Ceramic substrates for thin-film electric circuits are produced by (a) forming a casting compound which can be sintered to give a ceramic body, (b) pouring the casting compound on to a base and drying the compound to form a leather-like, tough, green substrate foil, (c) compressing the substrate foil under a pressure of up to 1000 kg./cm.<SP>2</SP> between highly polished plane parallel surfaces and (d) sintering the compressed foil. The casting compound may comprise ground alumina, solvent and bonding agent.
Patent GB-1241150-A (GB)
Title: Improvements relating to superstructure in self-advancing roof supports
Inventor: GROETSCHEL KARL MARIA
IPC: E21D23/00
Filed: 1970-01-27
Abstract: 1,241,150. Advancing mine roof supports. K. M. GROETSCHEL. 27 Jan., 1970 [27 Jan., 1969], No. 3868/70. Heading E1P. In a self-advancing mine roof support, roof bars 16 are connected together by looped elastic, strip-like elements 20 in order to prevent lateral tilting. The elements take the form of spring steel strips and are connected to the bars via holders 25 connected to the underside of the bars. Modified connections are also described (Figs. 7, 8) including those in which the holders are positioned within the roof bars (Figs. 3, 4). Each element may be formed of two parts joined centrally (Fig. 5).
Patent GB-1202244-A (GB)
Title: 0-monohaloformates, 1-monoalkylcarbonates and 1-monoarylcarbonates of substituted 1,3-dihydroxypropane 3-esters and preparation thereof
Inventor: KULKA KURT
IPC: A61K31/215
Filed: 1967-08-01
Abstract: 1,202,244. 1,3-Dihydroxypropane derivatives. FRITZSCHE DODGE & OLCOTT INC. 1 Aug., 1967, No. 3909/70. Divided out of 1,202,242. Heading C2C. Novel 1,3-dihydroxypropane derivatives of the formula where the ring A is unsubstituted or substituted, or fused to a further ring to complete a naphthalene or methylenedioxybenzene ring system, R<SP>1</SP> and R<SP>2</SP> are alkyl groups in which the total number of carbon atoms is 2 to 7, X is monohaloformate, monoalkylcarbonate, monoarylcarbonate, or OH, and Y is acyloxy, with the provise that when ring A is unsubstituted, X is not OH, are prepared by reacting the corresponding 1,3-dihydroxy propanes with a carboxylic acid in a solvent and, if desired, reacting the 3-(carboxylic acid monoester) of the glycol then obtained with a carboxyl dihalide, monoalkyl haloformate or monoaryl haloformate. 1 - Hydroxy - 1 - phenyl - 2,2 - dimethyl - 3 - acetoxy - propane is obtained by reacting 1 - phenyl - 2,2 - dimethyl - 1,3 - dihydroxypropane with acetic acid.
Patent GB-511134-A (GB)
Title: Process for colour photography
IPC: H01H73/10
Filed: 1938-02-08
Abstract: 511,134. Colour photography; diazotype processes. BERTRAND, J. P. Feb. 8, 1938, No. 3935. Convention date, July 9, 1937. Drawings to Specification. [Class 98 (ii)] A layer of gelatine is impregnated successively with mixtures of diazosulphonates and phenols, and each impregnation is followed by exposure under a negative corresponding to the colour produced by the mixture on exposure, the gelatine being impregnated in strata of different thicknesses so that the coloured component images may be formed in zones, one in the upper part of each stratum. After each impregnation, the gelatine is made alkaline with a solution of sulphoricinate of soda containing caustic soda. The impregnations in different strata are produced by washing the upper part of the gelatine, as with this solution, for different lengths of time after impregnations throughout the whole thickness of the layer. Although the strata overlap in the lower parts of the gelatine the coloured images appear only in the upper parts of the appropriate strata, and are separate. This is due to the fact that as each image commences to form in the top of its stratum, it protects the lower part from further action.
Patent GB-709970-A (GB)
Title: Means for taking up slack in screw and nut devices
IPC: F16H25/20
Filed: 1952-02-16
Abstract: 709,970. Screw and nut gearing. GASSER, J. W. Feb. 16, 1952, No. 4160/52. Class 80 (3) -In screw and nut gearing backlash is eliminated by means of an auxiliary nut part 38, Fig. 5, sliding in an oblique slot 44 in the main nut part 36 co-operating with the screw 10. The part 38 carries part of the threaded bore of the nut and is forced into wedging contact with the thread of the screw by means of a U-Shaped spring 70, the legs of which engage in holes each side of the nut. In a modified arrangement, Fig. 8, the nut is formed in two halves 90, 91 obliquely guided with respect to each other by pins 94, 95, fixed to the main part 90 and projecting into openings 96, 97 in the auxiliary part 91. As before a U-shaped spring 100 urges 'the one part towards the other.
Patent GB-199066-A (GB)
Title: Improvements in water cooled internal combustion engine cylinders
IPC: F02B77/04
Filed: 1922-02-13
Abstract: 199,066. Austin, Sir H. Feb. 13, 1922. Cylinders, construction of and cleaning.-In engines having a valve cap C in the inner wall of the water acket, and a separate cover F on the outer wall of the jacket, the latter is sloped downwards in a direction away from the cylinder axis in order to facilitate the introduction of a scraper or other tool, as shown by dotted lines. The. sparking-plug may be mounted in an upward extension of the inner cap C, and one cover F may be common to both valves of a cylinder. According to the Provisional Specification, the cover may extend across the whole of the head of the cylinder.
Patent GB-451603-A (GB)
Title: Improvements in and relating to arched roadway supports for use in coal mines and the like
IPC: E21D11/24
Filed: 1935-02-09
Abstract: 451,603. Mine-arch supports. TAYLOR, E., 9, Ravensworth Crescent, Low Fell, Gateshead, WOOD, H. N., Sun Buildings, Newcastle-on-Tyne, MOLL, W., Witten, Ruhr, Westphalia, Germany, and WOOD & CO., Ltd., H., Sun Buildings, Newcastle-on-Tyne. Feb. 9, 1935, No. 4191. [Class 20 (ii)] Mine-arch supports of the kind comprising two or more strut portions and resilient packings between the strut portions and also between their lower ends and the supporting means, are characterized by the provision of convex shoes on the ends of the struts and concave recesses on the resilient packings. In one form, the resilient packing at the apex comprises a wooden member 1 stiffened by upper and lower plates 2, recesses 7 being provided in the sides of the member to receive convex shoes 3 on the ends of the strut members 4, these shoes being either plain or corrugated. Similar recesses are provided in the packing members 5 at the springings of the arch and all the recesses may be provided with bearing-plates 6. In a modification, the apex resilient member comprises wooden members 9 stiffened by a central I-section bar 8 and the shoes on the strut members comprise I-section bar caps 11 and convex wooden members 10. The apex member may be further stiffened by upper and lower plates or strips as shown in Fig. 1. In a further modification, Fig. 4, the ends of the shoes 12 may be bent over on to the strut and either bolted or welded thereto, and the resilient packing at the springing may be provided with a channel member 13 having chamfered retaining plates secured to its web to provide a suitable recess.
Patent GB-630218-A (GB)
Title: Improvements relating to apparatus for transporting and placing concrete
IPC: B60P3/16
Filed: 1947-02-13
Abstract: 630,218. Unloading vehicles. HANDS, P. Feb. 13, 1947, No. 4206 [Class 78 (iv)] [Also in Group XXXII] A tractor or like vehicle is provided at the front end with an overhanging hopper 5 having a transversely directed opening at the bottom of the hopper covered by a gate 8 carried on pivots 10. The gate 8 is controlled by a lever adjacent the driver's seat thus allowing the contents of the hopper to be dumped into a trench &c.
Patent GB-708977-A (GB)
Title: Improvements in or relating to motion picture films and method of affixing a sound track thereon
Inventor: CAMRAS MARVIN
IPC: G11B5/633
Filed: 1952-02-18
Abstract: 708,977. Kinematograph picture and sound films. INTERNATIONAL RESEARCH & DEVELOPMENT CORPORATION. Feb. 18, 1952, No. 4214/52. Class 98(2) [Also in Group VIII] A tape having one surface covered with a layer of magnetizable particles is affixed by its other surface to a photographic film whcih is wider than the tape. The tape which may bear a pre-recorded program may be secured to one margin only or to both margins but on opposite faces of the film. If the film is still to be processed the tape is secured either to the non-emulsion side or a strip of the emulsion is removed. As described the film has a single row of feed perforations and the tape may be secured either adjacent to and outside the perforations or remote from them and the film bevelled or recessed on this margin to receive it. The tape may be stuck to the film or bonded to a film of a cellulose derivative by heat and pressure and may be of paper or a cellulose derivative. If both tape and film are cellulose esters they may be united by moistening with a solvent, e.g. acetone, and pressing them together when the resultant structure may be thinner than their added component thicknesses. As shown, a narrow strip 54 of material coated with a magnetizable layer, which is fed over a roller 61 dipping into a bath of adhesive, and a motion picture film 63 are guided by adjustable forked fingers 70, 71 on to a part-cylindrical surface 65 curved in the direction of movement of the film and thereafter are pressed together by rollers 66, 67 before being wound up together on to a reel 68. The magnetizable strip may be produced by slitting lengthwise a wide strip of material and may be fed directly from the slitting machine to the adhesive roller 61.
Patent GB-988810-A (GB)
Title: Cathode ray tube
IPC: H01J31/64
Filed: 1963-02-01
Abstract: 988,810. Cathode-ray tubes; semiconductor devices. HUGHES AIRCRAFT CO. Feb. 1, 1963 [Feb. 21, 1962], No. 4224/63. Headings H1D and H1K. A cathode-ray tube storage target comprises a photo-conductive or bombardment-inducedconductive material which remains conductive under the influence of an electric field applied thereacross after excitation by electromagnetic or particle radiation and after cessation of this exciting radiation. The material may be arsenic tri-selenide with an excess of arsenic. As shown, such a target 26 is used in a scanconversion tube comprising a writing gun 6 associated with a fluorescent screen 18 coated with a light-reflective, electron-permeable, conductive layer 20. Light from screen 18 passes through a glass support or a fibre-optic component 30, and through a conductive layer 24 on photoconductive target 26. The free surface of target 26 is initially stabilized at the reading gun cathode potential and layer 24 is positively biased, so that target 26 is under the influence of an electric field and retains a conductivity pattern, corresponding to information written by gun 6, and which may be read off repeatedly by the low velocity reading beam 28, output signals being derived from layer 24. The conductivity pattern may be erased by interrupting the reading beam, for since the target 26 has a finite resistance, its surface will gradually reach the potential of layer 24, or by pulsing layer 24 sufficiently positive to cause secondary emission in a ratio greater than one. Alternatively, a negative writing mode may be employed, the potential of layer 24 and the reading beam current being such that the initial gradient produced in target 26 by the input light cannot be maintained by the reading beam, so that a gradual fade-out of the stored information occurs, and the rate of this fade may be controlled by a floodlight on target 26. In an alternative arrangement, Fig. 3 (not shown), target layer 26 is of a material exhibiting the property of field-sustained conductivity after initial excitation by electron bombardment, such bombardment being effected through film 24 and through a cathodoconductive film which replaces target elements 30, 18, 20. The target layers may be supported by an electroformed mesh screen or by an aluminium oxide membrane. The output signal may be derived from an electron multiplier surrounding the reading gun.
Patent GB-1136100-A (GB)
Title: Motor vehicle wheel assemblies
Inventor: BACHE DAVID ERNST
IPC: B60B3/18
Filed: 1966-02-01
Abstract: 1,136,100. Securing wheels on hubs. ROVER CO. Ltd. 31 Jan., 1967 [1 Feb., 1966], No. 4305/66. Heading B7C. A vehicle hub 1 with radial flange 2 carrying the usual wheel-mounting studs 4, is connected to receive a centre-lock fixing wheel 13 by an adaptor 5 having a flange 6 to be fixed to flange 2 by nuts 10 engaging the studs, and a cylindrical part 8 to receive the centre lock nut 17. Torque is transmitted by cylindrical nut parts 12 engaging complementary recesses in the wheel.
Patent GB-545487-A (GB)
Title: Improvements in or relating to pipe and like clips
IPC: F16L33/08
Filed: 1941-04-01
Abstract: 545,487. Hose-pipe clips. HILL, S. D. April 1, 1941, No. 4340. [Class 44] In a hose-pipe clip of the kind in which a worm 10 mounted in a housing 13 carried by one end 8 of the band engages directly with abutments 9, usually provided by slots, in the other end of the band as, for example, in Specification 203,262, [Class 44], the housing is provided with an integral tailpiece 14, extending from one end of the housing base 15, by which the housing is secured to the band as by rivets 17. The tailpiece 14 may be disposed under the band, as shown, the overlapping parts being off-set at 18, 19 so as to nest together, or may be disposed over the band and off-set so that the end of the band is substantially flush with the base 15. The housing and tailpiece are shown as made from a single blank shaped to house worm 10 snugly and to provide guides for the downwardly inclined edges 11 of the slotted end of the band, the meeting edges of the blank being disposed in the base so that the tailpiece is in two parts. independently connected to the band as seen in Fig. 3. Lateral separation of the side-walls of the housing is prevented by transverse tie-pins 21 passing freely through spaces left by unthreaded portions 22, 23 of the worm as shown, or alternatively engaging annular grooves in these surfaces to aid in locating the worm. As shown, the head of the worm abuts against one end of the housing, while a washer 20, rotatably secured on the other end of the worm, bears against the other end of the housing. Alternatively, the meeting edges of the blank may be disposed in the upper surface of the housing and provided with upwardly bent projections riveted in apertures in a cover-plate as in Specification 526,139, in which case the cover-plate may have downwardly bent ends which respectively replace washer 20 and provide abutment for the worm head.
Patent GB-135082-A (GB)
Title: Improvements in Buffer, Draw and other Springs Constructed of India Rubber.
Inventor: SPENCER FRANK
IPC: F16F1/40
Filed: 1919-02-21
Abstract: 135,082. Spencer, F. Feb. 21, 1919. India-rubber springs.-Buffer springs of the types shown in Specifications 17102/13, 134,056, and 134,940, have vulcanite or equivalent flanges g secured to the embodied or separating plates to prevent movement of the outer edge of the outer rubber ring a. Similar separating flanges may be employed between the various rings so as to form annular seatings for the rings.
Patent GB-451676-A (GB)
Title: Improvements in or relating to sound transmitting recording and reproducing systems
IPC: H04S1/00
Filed: 1935-02-11
Abstract: 451,676. Reproducing music &c. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London. -(Assignees of Beers, G. L. ; 119, Summerfield Avenue, Collingswood, New Jersey, U.S.A.) Feb. 11, 1925, No. 4401. Convention date, Feb. 9, 1934. [Class 40 (iv)] [See also Group XL] In a binaural system, the outputs of two or more microphones A, B are combined in a transformer 12 and transmitted over a single channel (which may have a recording and reproducing link), and in addition an auxiliary frequency, outside the sound range and supplied by a generator 22, is modulated in accordance with the difference in output of the microphones, transmitted over the same channel, and at the receiving end is separated out by a filter 25 to control the relative gains of amplifiers 17, 19 feeding spaced loud-speakers 18, 20. Fig. 2 shows means for alternatively modulating the auxiliary frequency in accordance with amplitude or frequency. The output circuits of additional amplifiers 101, 131 associated with the microphones are fed to a double - diode rectifier 23-24 the circuits of which contain resistances 26, 27 connected in series to the grid of an amplifier 29 whereby the outputs of the amplifiers 10<1>, 13<1> shift the grid bias in opposite directions. With switches 31, 34 in positions 37, 36, changes in grid bias of amplifier 29 cause changes in amplitude of the oscillations generated by tube 22, and with the switches in their alternate positions, the anode-cathode circuit of amplifier 29 is connected in series with condenser 33 across the upper part of the inductance of the tuned circuit 30 so that changes in the impedance of the anode-cathode circuit cause changes in the frequency generated. Fig. 2 also includes the provision of automatic volume control for maintaining the changes in the control energy independent of the absolute sound values. Thus valves 38, 38<a>, are fed from the outputs of valves 10<1>, 131 and resistances 40, 40<a> in series supply potential to the grids of these amplifying valves to keep constant their feed to the rectifier 23-24. In receiving an amplitude-modulated auxiliary frequency, Fig. 3, the audiofrequency output from receiver 16, Fig. 1, is fed to amplifiers 17, 19 through transformers 41, 42, and the auxiliary frequency is fed through transformer T to two rectifiers 25, 25<1> having resistances connected in their circuits whereby the grids of the amplifiers are oppositely biassed in accordance with the amplitude of the auxiliary frequency. In a frequency-modulated system, Fig. 4, two filters 43, 44 passing bands above and below the mean frequency of the auxiliary energy (with or without an overlap) feed two oppositely-arranged double-diode rectifiers similar to that in Fig. 2, and similarly and oppositely control the grids of amplifiers 17, 19.
Patent GB-1150867-A (GB)
Title: Improvements in or relating to Detachable and Adjustable Stands for Stenographic and Like Machines
IPC: B41J29/06
Filed: 1968-01-29
Abstract: 1,150,867. Stands for typewriters. STENOTYPE GRANDJEAN. 29 Jan., 1968 [20 Nov., 1967], No. 4401/68. Heading A4H. A stand for supporting a typewriter comprises three legs 3 pivoted at their upper ends to a cylindrical member 1 through which passes a rod 16 on the upper end of which the typewriter is mounted, each leg comprising two channel sections 3a, 3b which are hinged together. The two leg sections 3a, 3b can be set in alignment or the lower section 3b can be folded into the upper section 3a. The joint between the leg sections includes a spring washer (10), a friction plate (11) and a spring blade (12) which automatically locks the section in aligned position. The rod 16 is locked in desired position by a screw 17 and the upper end of the rod is screwed into a tapped hole in the typewriter or in a member with arms of adjustable length with bent ends for clamping the typewriter. Alternatively a ball and socket joint may connect the rod 16 and the typewriter.
Patent GB-257884-A (GB)
Title: Improvements in or relating to circular grinding or polishing machines
IPC: B24B47/16
Filed: 1926-02-16
Abstract: 257,884. Loewe & Co. Akt.-Ges., L. Sept. 4, 1925, [Convention date]. Disc apparatus.-In a circular grinding or polishing machine, the grinding-disc is given an axial reciprocation of small amplitude, in order to equalize wear of the disc, by means of a lever, - which is oscillated, through gearing, by the grind. ing-wheel spindle itself; means also are provided for stopping the reciprocation. The grinding- wheel spindle 1 carries a worm 2 driving a wormwheel 3, the shaft 4 of which carries eccentric pins 5 which oscillate levers 8 carried by a shaft 7 journaled in a frame 6. Links 9 connect the levers with a ring 10 arranged between rings 12, 15, the ring 15 being secured to the spindle 1 and the ring 12 being movable along the spindle by a pin 13 carried by a bolt 11 slidable in a bored part of the spindle; a slot 14 in the spindle allows movement of the pin 13. The bolt 11 also is similarly connected by a pin to a ring 19, which is movable by the bolt against a stationary part of the machine, for example, a bearing 20. The end of the spindle 1 and the end of the bolt 11 are screwed and are engaged by a differential nut 21. When the reciprocation of the spindle 1 is required, the nut is rotated to draw the ring 19 away from the bearing 20 to free the spindle, and to draw the ring 12 closer to the ring 15, so that the reciprocation of the ring 10 moves the spindle. Reverse rotation of the nut moves the ring 19 to engage the bearing 20 and also separates the ring 12 from the ring 10, which then slides freely between the rings 12, 15.
Patent GB-339873-A (GB)
Title: Improvements in watches or clocks
IPC: G04B37/05
Filed: 1930-02-10
Abstract: 339,873. Appelfeld, A., and Blocksberg, I. Feb. 10, 1930. Framework; wheels, pinions, and arbors.-A watch or clock has (a) plate springs 4 attached tangentially to the movement and bearing against the case 1, (b) radial pins 3 on the movement housed, with lateral play, in corresponding holes 2 in the case, and (c) a spring 9 pressing against the bearing cap 7 of the balance staff to keep this cap in its centering bearing 7' on the balance bridge 8. At the opposite end the cap 7 is held by a spring 10.
Patent GB-625941-A (GB)
Title: Method for producing spherical metallic granules
IPC: B22F9/08
Filed: 1947-02-14
Abstract: 625,941. Shot making in towers. SOC. MINIERE ET METALLURGIQUE DE PENARROYA, and FALQUE, A. Feb. 14, 1947, No. 4422. Convention date, March 12, 1946. [Class 82(ii)] A method of forming lead shot or similar spherical lead granules comprises allowing drops of the molten metal 1 issuing from a perforated container 2 to fall freely through a reducing or inert gas or liquid. When liquid is used, the granules are removed by means of a rotary valve 10, loss of the liquid such as a mineral oil being prevented by feeding water to the bottom of the chamber 6 before opening the valve.
Patent GB-104930-A (GB)
Title: Improvements in Water-supplying Attachments for Rock Drills.
Inventor: HANSEN CHARLES
IPC: E21B21/01
Filed: 1916-03-25
Abstract: 104,930. Hansen, C. March 25, 1916. Percussive drills. - In a percussive rock drill having water-supplying means, annular flexible packing is inserted between the anvil block and its guide and is so constructed that the water passes through it, and by its pressure causes the packing to form a watertight joint between the anvil block and its guide. In one form, a flexible packing-ring shown in crosssection in Fig. 4, and provided with an annular slot 16, an outer annular recess 13, a ring of holes 15, and an inner annular recess 14, is inserted in an annular recess 11, Fig. 2, in the bore of the guide 3 of the anvil block 4. The block 4 is provided with two annular grooves 24, 25 connected by grooves 26, and the grooves 24 communicate through two rearwardly inclined holes 21, 22, and an axial hole 23 with a longitudinal hole 7 through the bit. Water is supplied through a pipe 19, a strainer 20, and a passage 17 to the bottom of the recess 11, and thence passes through the recesses 13, 14, Fig. 4, in the packing-ring, and through the holes 21, 22, 23 to the bit. The cross-sectional area of the passage 17 is preferably made greater than that of the two holes 21, 22 combined. Fig. 6 shows, in cross-section, a leather or like packing-ring having holes 27 in its inner side communicating with a bevelled recess 28 in its outer side.